OO in PHP -Framework,MVC,CMS (From several books) Web Programming-even-2012-dww 1

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25.04.12 Web Programming-even-2012-dww 1

OO in PHP

-Framework,MVC,CMS

(From several books)

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● Dalam prosedural prog → usually use lib

(library)

● Lib → contains related function

Ex: dbfunction.inc → grup function terkait pengelolaan database (whole)

● OO dlm PHP dikenalkan sebagai ”whole”

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● PHP also support OO (object oriented)

eventhough a simple OO → PHP keep simple, no need to make it so complex.

● OO in PHP is not like to turn to Java-like

● OO very important for big program → good for

organizing

● Recall concept of OO (class, inheritance...). ● Pemahaman dasar tentang OOP plg penting,

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● OO bisa diartikan segala sesuatu yang

bersifat modular. Modularisasi

● Object → gambaran di dunia nyata, ex:

baju gaun. Class → representasi object dalam program, ex: desain baju gaun

● Class scr sederhana sbg the other

non-scalar data type.

● Recall array (index and assosiatif), the

complex data type as the prominent about class, all basic dari php

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● PHP 5 start to create this way (OO),

mengenalkan SPL (Standart PHP Library), berisi class yang siap digunakan

Ex:

– SQLite → class_lib dlm pengelolaan

databases

– libxml2 → class_lib API dlm pengelolaan

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Class

● Class is a storage to store data and information

of object, property or attributes of object as like as a variable

● In class not only for property but also a

function. Function in a class show the process that used to in object

● class classname{

//declare of property or/and function }

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Ex:

● Class Course in IE dept

● Has 3 variables-properties (dept, code

and name), general attributes in object course

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● U can think class as ”a factory knife” can cut

uniformly or cut with various style and keep the core properties

● Sederhananya, class memproduksi banyak

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● Or define value of var ●

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● Class not only storage of properties but also

functions/methods (process its own data)

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● Dari contoh sebelumnya class yang telah

dibuat dapat dikatakan sebagai sebuah modul.

● Lets name it Class_Student_lib.php

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Constructor

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Encapsulation

● Simply, make boundary of the class, membuat

aturan batasan akses

● Modifiers: Public, Private, Protected ● Default: public

● ”var” → public

● Public: have no access restrictions, meaning

anyone can access them. Tidak ada pembatasan

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● Private: only the same class can access.

Hanya dalam class tersebut

● Protected: only the same class and

classes derived from that class can

access. Hanya dalam class tersebut dan class turunanny

● Gunanya: pembatasan pengaksesan

class

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Inheritance

● One of important concept in OO, modify prev ex

● Make inheritance, pewarisan

● class classname2 extends classname{

//add properties or functions }

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● Sometimes (when using inheritance,)

anda ingin customize methods dasar dari core class

● Lakukan ”override” atas methods core

● Ex: function show1 di class Student will be

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Memulai pendekatan OO

● Definisikan problem utama, kemudian ke

sub problem sampai batas yg terkecil yg diinginkan → spesific task, but keep it

simple

● Create simple analysis

– Object didefiniskan problem real world – Buat relasi antar object

– Buat class yg mungkin (sekaligus

properties dan methods)

– Perbaiki kebiasaan Naming, comment →

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● Then U can make Ur own class to manage

database, to make connection, or to make validation, a template for website, etc

● OO in PHP make it more dynamic and easier to

manage and program

● All U need only improve from the basic and

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Ex:

● Problem input

● Subproblem/task → objek yang mungkin

ada

– Form

– Generate captcha code – Validasi input

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Ex:

● Problem Database MySQL→ berulang

penggunaannya

● Sub problem/task → object yg mungkin

– Connection – Database – Table

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What is it?

● High level OO, simply web based S/W ● Adalah paket S/W yg berisi code untuk

fungsi umum/general, di mana user dapat melakukan customization (specialization, overriden etc)

● Web Framework adalah s/w yg di desain

scr umum untuk Web applications and Web services

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MVC

● Model- View – Controller → konsep dasar

yg sering digunakan di framework atau bentuk modularisasi yg lain

● Model →data, proses (Database, Web

Services ...)

● View →penyajian Model ke dalam bentuk

interaksi dengan user (Layout..)

● Controller → mengatur input dan respon

antara Model dan View (http, html, xml, json, ajax...)

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● A lot, web framework based on PHP

– Zend (mature one) – Symfony

– CakePHP – Spring

– Django – etc

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● Easy to use, easy to learn, easy to modify ● All U need,

– invest time to read the manual, – the packet their have

– using oo – skill to customize the

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Ex:

● Zend Framework has a bunch core PHP

Applications

● Ex:

– Database access (Zend_DB)

– Google Data API’s (Zend_Gdata) – OpenID (Zend_OpenId)

– etc

● All U need is configure, know the basic of

PHP and OO concept in PHP to learn and use it

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CMS

(Content Management

System)

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● CMS more about concept than product ● Tepatnya Web CMS

● Besar kecilnya relatif dengan its aim ● Used to for Large Scale Website

● Ex:

– Moodle → for e-learning – Drupal → general website – Etc

● Must be dynamic, a bit complex ● Much modularization, OO

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● Categories:

– Authoring, penanganan user pengisi content – Workflow, pengaturan alur dari authoring ke

publishing

– Storage, pengiriman atau penyimpanan ke

storage

– Publishing, penyajian di webpage

● Core features: – User management – User Interface – Application – Data Source – Deployment

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● Simple Ex: CMS Homepage Article

– Installation – Log in Admin

– Initiatiation of database/ data file

– Interface Management article (list article,

add,edit,delete-op)

– Admin interface to add content of article

(author, date/time, title, category, body article, etc)

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● Java memeliki banyak kelebihan, atau

dapat melakukan hal lebih baik dari PHP

● PHP has to be the wide range of

extensions available for the language

● PHP+ Java → menggunakan Java (Java

very powerfull in lib) untuk support aplikasi web bases (PHP)

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● By default PHP isnt ready working with

Java

● Only need to add configuration (depend

on the platform), *.nix or windows

● Assumption in windows, U have installed

properly java and take a look in PHP directory, make sure that U have

php_java.dll and php_jar.dll.

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● Then repaire the configuration. Open

PHP.INI under PHP directory

● Make all [Java] section enabled and

correct

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● After those steps, Java will be ready as a

class for PHP

● Usually as library → API

● And could access Java from PHP Scripts,